Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
230049lightly pollutedexcellent101excellent
220049lightly pollutedexcellent91excellent
210056lightly pollutedexcellent91excellent
200048lightly pollutedexcellent71excellent
190025goodexcellent41excellent
180013goodexcellent21excellent
17008excellentexcellent21excellent
16008excellentexcellent21excellent
150011excellentexcellent31excellent
140011excellentexcellent31excellent
130011excellentexcellent21excellent
120011excellentexcellent31excellent
110019goodexcellent41excellent
100036goodexcellent81excellent
090046lightly pollutedexcellent81excellent
080048lightly pollutedexcellent91excellent
070048lightly pollutedexcellent81excellent
060040lightly pollutedexcellent71excellent
050037lightly pollutedexcellent71excellent
040040lightly pollutedexcellent71excellent
030039lightly pollutedexcellent71excellent
020024goodexcellent51excellent
010019goodexcellent31excellent
000017goodexcellent31excellent